In this Sept. 22, 2015, photo, Vice President Joe Biden gives a 'thumbs-up' after speaking at the White House Initiative on Historically Black Colleges and Universities' (HBCU) National HBCU Week annual conference in Washington. The Human Rights Campaign says Biden will be the keynote speaker for its annual dinner. The national gay rights group is hosting the dinner Oct. 3 in Washington. The speech is a major opportunity for Biden to demonstrate his support among LGBT voters. Biden is considering running for president in 2016 but hasnt announced a decision. (AP Photo/Pablo Martinez Monsivais)

(CNN) Vice President Joe Biden will join Hillary Clinton on the campaign trail next week, following an event with President Barack Obama.

Biden will join Clinton next Friday at a campaign event in Scranton, Pennsylvania. Biden was born in Scranton, and Clinton’s father grew up there.

The event will follow a joint appearance with Clinton and Obama on Tuesday in North Carolina.

Also on Thursday, Biden told NPR that Clinton’s primary challenger, Vermont Sen. Bernie Sanders — who has not yet endorsed Clinton despite acknowledging his campaign is virtually over and saying he’ll “probably” vote for her — will back the presumptive Democratic nominee.

Biden’s appearance on the trail comes as Clinton is looking to shore up support in swing states. Pennsylvania, whose economy is heavily reliant on steel and manufacturing, is the type of Rust Belt swing state Donald Trump is looking to appeal to with his populist, anti-trade message.

Biden toyed for months with his own run for the Democratic presidential nomination last summer before officially bowing out in the fall, citing family and the difficulties of mounting a campaign so late in the process.